i am mending my bike now ---------------------- 对划线部分提问

问题描述:

i am mending my bike now ---------------------- 对划线部分提问

划线部分如果是I---Who is mending your bike? mending my bike---What you are doing now?my bike---What you are mending?my---Whose bike are you mending?够全了吧~哈哈